Radiography Flashcards
What are 4 legislations for radiography
• IRR (IONSING RADIATION REGULATION) 17
• IR(ME)R 17 IONSING RADIATION (MEDICAL EXPOSURE) REGULATIONS 17
• ALARP - AS LOW AS REASONABLY PRACTICABLY
• REPPIR- The Radiation (Emergency Preparedness and Public Information)
Regulations 2001
Local rules
which are displayed next to x-ray machine in dental surgery - DENTAL RADIATION LEGISLATIONS -
arrangements for pregnant staff
• name of radiation protection supervisor
• identification and description of controlled area
What to do in the event of malfunction
Radiation protection supervisor duties-
carry out risk assessments regarding restricting radiation exposure (risk assessment of x-ray area.
• ensure all staff are trained to their level of legal responsibility (staff training).
• ensure local rules are up to date, and to update when necessary.
• maintain contents of “radiation protection file”.
Bite wings - what do u see?
Posterior teeth in occlusion
Crown of posterior teeth in occlusion
Cannot see the apex
Bite wings- why do we take them
Bone loss
Diagnosing caries
Check under old restorations
Periapical- what do we see?
Focused on 1 or 2 teeth
Can see crown to apex and surrounding bone
Periapical- why do we use them
Before and after RCT
Before and after extraction
Abscesses
Occlusal- what do we see?
Maxillary or mandible view
Occlusal- why do we take them
Impacted canines
Fractures
Cysts
Saliva gland blockage
OPG -what do we see
Full dentition and mandible
OPG- why do we take them
Orthodontic
Trauma
Before surgery
Ceph- what do we see
Lateral view of skull,mandible and neck
Ceph- why do we take them?
Pre jaw surgery
Identify trauma
Lateral oblique radiograph- what do we see?
Lateral view of mandible
Lateral oblique radiograph- why do we take them
Jaw pathology
Orthodontic assessment
What is quality assurance
Process to make sure standards are met and prevent quality failure
Grading system (old)
Grade 1- perfect
Grade 2-some faults
Grade 3-unusable
Grading system (new)
A- acceptable
N- not acceptable
When is dosimeter worn
50 extra oral and 100 intra oral a week
Audit cycle
Perform audit
Compare results
Reaudit
What does ALARP mean
As low as reasonably practicable
4 hazards for radiography
Hair loss
Skin burns
Cell changes
Tissue damage
What do these signs mean yellow and orange
Yellow- radiograph warning label
Orange- oxidising agent
Green/brown tint to xray
Fixer not washed properly
Static marks
Mishandled- removed from packet too early
Scratches
Not stored or handled properly
Too dark
Overdeveloped
Lead foil printed on film
Exposed with film packet in the wrong way
Blurred image
Moved during exposure
Coned image
Incorrect positioning of the tube head
Too pale
Underdeveloped, too cold or not left in developer long enough
Foggy image
Exposed to light
